Originally Posted by The Codes
How is the IAC removed? and cleaning it will result in smoother idle? hoping to do the tb and IAC both tomorrow. might just do the tb mod while I have it off as well.
There are just a few screws to remove it. What happens is the IAC [idle air control] opens and closes to establish the proper idle. Carbon and other deposits build up and make it sticky, so the valve [acts just like a plunger] doesn't operate as
smooth as it could. So clean the plunger on the IAC with chemicals that do not eat away the o-rings or other parts of the assembly and do a good job cleaning the port where the IAC resides. A LOT of buildup occurs in there too.
If you did it already, how did it go?